On the decays. pi. /sup +/+. -->. e/sup +/. nu. a(a. -->. e/sup +/e/sup -/) and. pi. /sup +/. --> mu. /sup -/e/sup +/e/sup +/. nu

Results from an experiment to observe the leptonic decays of the pi-plus pi-plus to e-plus,neutrino,A (A to e-plus,e-minus) pi-plus to mu-minus,2e-plus,neutrino are presented.